diff --git a/rich/file_proxy.py b/rich/file_proxy.py
index 4b0b0da6c2..e32523bd6b 100644
--- a/rich/file_proxy.py
+++ b/rich/file_proxy.py
@@ -55,3 +55,6 @@ def flush(self) -> None:
 
     def fileno(self) -> int:
         return self.__file.fileno()
+
+    def isatty(self) -> bool:
+        return self.__file.isatty()
diff --git a/tests/test_file_proxy.py b/tests/test_file_proxy.py
index 2ec4d789e3..ff23493d14 100644
--- a/tests/test_file_proxy.py
+++ b/tests/test_file_proxy.py
@@ -35,3 +35,10 @@ def test_new_lines():
     assert file.getvalue() == "-\n"
     file_proxy.flush()
     assert file.getvalue() == "-\n-\n"
+
+
+def test_isatty_delegates_to_proxied_file():
+    file = io.StringIO()
+    console = Console(file=file)
+    file_proxy = FileProxy(console, file)
+    assert file_proxy.isatty() == file.isatty()